Kitto's Popular Cyclopedia of Biblial Literature
Breastplate of the High Priest
Breastplate of the High-Priest, a splendid ornament covering the breast of the high-priest. It was composed of richly embroidered cloth, in which were set, in four rows, twelve precious stones, on each of which was engraven the name of one of the twelve tribes of Israel (Exodus 28:15-29; Exodus 39:8-21). [PRIEST]
Kitto, John, ed. Entry for 'Breastplate of the High Priest'. "Kitto's Popular Cyclopedia of Biblial Literature". https://www.studylight.org/encyclopedias/eng/kbe/b/breastplate-of-the-high-priest.html.